This series documents the various training systems used by the United States military. Each hour-length episode focuses on a particular branch of the armed forces.The production quality is high with concise narration. It manages to show the gritty details and hardships that come from such a high stress training environment without becoming boring.I think the show is best suited to those with an interest in how things work. It probably caters mainly to a male audience.If you like this show you may also like:Man vs WildFull Metal Jacket